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Interim Financial Statements (Property Acquisitions And Investments In Unconsolidated Real Estate Joint Ventures) (Details) (Acquisitions And Investments In Real Estate Joint Ventures [Member], USD $)
In Thousands
6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Acquisitions And Investments In Real Estate Joint Ventures [Member]
   
Increase in debt $ 24,383  
Decrease in property 3,812 1,020
Decrease in real estate joint ventures and partnerships - investments 153  
Increase in other, net $ 22 $ 46